Mdmp 1207 006 Bolt In Gauge Vital Signs

5 The speedometer rests on the bezel in the same manner as the smaller gauges during the assembly phase. If using a reproduction bezel (ours was a Scott Drake item), be sure to slip the supplied rubber O-ring over the speedometer in order to properly secure the speedometer to the bezel. The row of white dip switches seen on the back of the speedometer is where you'll calibrate the speedometer gauge later.